HALO 160 Å ES-C18, 5 µm, 4.6 x 150mm

Poroshell 120 EC-C8,2.1x150mm,2.7um

HALO 160 Å ES-C18, 2.7 µm, 2.1 x 5mm, Guard Colum

Poroshell 120,SB-C18,21.2x150mm,4um